MS 51963 Set Screws | McMaster-Carr

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Rockwell C45

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EAR99

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19 Products

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Mil. Spec. Steel Cup-Tip Set Screws

Manufactured and tested to meet strict U.S. military specifications for material and construction. Made of alloy steel, these screws are strong enough to hold components without wearing down. The tip has thin edges that dig into surfaces for a secure hold. They often lock gears, pulleys, and other transmission components onto shafts.

Cadmium-Plated Alloy Steel—The plating reduces friction between the screw and your mounting surface to prevent sticking when tightening and loosening. It also creates a barrier against rust.

	Mil. Spec.		Each
Cadmium-Plated Alloy Steel







	2-56

	1/8"	0.035"	Rockwell C45	MS51963-1	98637A016	00000


	3/16"	0.035"	Rockwell C45	MS51963-2	98637A019	0000
	1/4"	0.035"	Rockwell C45	MS51963-3	98637A022	0000




			4-40

			1/8"	0.050"	Rockwell C45	MS51963-9	98637A103	0000


			3/16"	0.050"	Rockwell C45	MS51963-10	98637A105	0000
			1/4"	0.050"	Rockwell C45	MS51963-11	98637A111	0000
			1/2"	0.050"	Rockwell C45	MS51963-15	98637A123	0000




					6-32

					1/8"	1/16"	Rockwell C45	MS51963-20	98637A142	0000


					3/16"	1/16"	Rockwell C45	MS51963-21	98637A146	0000
					1/4"	1/16"	Rockwell C45	MS51963-22	98637A151	0000
					3/8"	1/16"	Rockwell C45	MS51963-24	98637A155	0000




							8-32

							1/8"	5/64"	Rockwell C45	MS51963-33	98637A278	0000


							3/16"	5/64"	Rockwell C45	MS51963-34	98637A283	0000
							1/4"	5/64"	Rockwell C45	MS51963-35	98637A286	0000
							3/8"	5/64"	Rockwell C45	MS51963-37	98637A289	0000
							1/2"	5/64"	Rockwell C45	MS51963-39	98637A292	0000




									1/4"-20

									1/4"	1/8"	Rockwell C45	MS51963-63	98637A401	0000


									3/8"	1/8"	Rockwell C45	MS51963-65	98637A410	0000
									1/2"	1/8"	Rockwell C45	MS51963-67	98637A416	0000